Clutch mechanism.



M. I. ROSE NTHAL. CLUTCH MECHANISM.

APPLICATION FILED JUNE 7. 1905.

' J EMOR- ATTORNEY PATENTED APR. 2, 1907.

2 SHEETS-SHEET 1,

M. I. ROSENTHAL. CLUTCH MECHANISM.

APPLIOATION FILED JUNE 7.- 1905.

' PATENTED APR. 2, 1907.

2 SHEETS-SHEET 2.

WITNESSES: m/mvm/e a ATTORNEY To all whom it may concern:

. n nrrnn r since.

@LUTGH we. eschew.

-f' B-e.it known that I, MAURICE I. Rosen- "IHAL, a, citizen. of theUnited States of America, and a resident of Fort Wayne, in

the county of Allen and State of'lndiene,

' have invented certain newsnd useful Improvements in Clutch Mechanism,of which the following is e specification.

Thisinvention relates to improvements in clutch'mechsnism; end theobject thereof is to afford means for efiecting engagement between ndriving and driven member while either or both of said parts are inmotion and also to rovide positive means for disenge ing the sttermember from the-former.

Another object of this invention is to provide. relief mechanism for theclinch-dogs which will act to relieve the dogs as they arepressed-outwardly to engage with the driving member, until they becomeproperly seeted 1n connection therewith.

I construction illustrated in The above objects are accomplished by thethe accompanying drawings, in which Figure 1 is aplen view of svariable-speed transmission-gear with a portion thereof in cross-sectionand showing the movebie dogs I in connection therewith.

verse section of Fig. 1 portrdlly on the hue ofzthe dogs.

Fi 2 s trunsto at. Fig. 3 is 2. central section through one Fig. 4 is s.similar yiew of one of the dogs, the section being ins plane at rightangles to that of Fig. 3. Fig. 5 is a plan view and 4.

qrespondin parts throughout the several mounted 9. series --spect1vely,and all are secured in connection withthe counter-shaft, so as to rotatetoviews, en referring now to the ssme .1 is a, gear-case in which ismounted e-c'ounter sheft 2, a driven shaft 3, and a drivinggeer 4; Theaxes of the two latter are in alinement and the axis of the former isparallel therewith. Upon the counter-shaft is of gears 5, 6, 7, and 8,re-

' gether, and the gear 5 meshes with the drivear 4 and is driventhereby.

ithin the case and u on the driven memher 3 is mounted a. clutc imember9, the relation between the clutch member end the driven member beingfixed by means of a key 10. Upon the clutch member are loosely mounted aseries of toothed rings 11, 12,-and 13 0f various diameters which, withthe ex- I ception of the ring 13, mesh, respectively, with of the innerend of the dog shown Figs. 3

-ing 27, which around the sham ?e,jtented April 2, 1907.

jeots within the case 1., and the said inter.

mediate gear meshes with the gear 8 and also with the ring 13, and itwill therefore appear that the motion of the ring 13 will be in theopposite direction to that impsrtedto therings 11 and 12.

Upon the inner surfaces of each of the rings and also that of thedriving-gear are made a. series of notches 14, which are adepted toreceive the outer ends of the corresponding dogs 15, which have movablerelation with the clutch member 9.

The shank 18 of the driving-gear 4 is hollow and has driving relationwith. s frictiondisk 19, the latter being adapted to be actuated by theengine-Wheel 20. The said shank is made hollow to admit of Ion itudinelmovement therein of the ends of t e actusting-bars 21, which are'movcbly-seated in diametrically opposite longitudinal rooves 22, madein the driven member 3. lots23 are also made in the clutch member 9,which register with the grooves 22 in. the driven member, and are toadmit of longitudinal movement therein of the outwardly-extending crooks24:, made in the actuating-bars 21.

A number of dogs 15 are arranged in opposite peirs in connection withthe clutch memher and in radial. relation therewith, and the inner endof each of said dogs coincides with the corresponding groove 22 and slot23, above referred to, end the outer ends of the dogs are adepted toengage the notches 14 of the corresponding rings when the respective.

dogs are moved outward. Each of scld dogs has it slot 25 extendingacross its inner end and has also an enlsr ed axial bore 26 throughoutits inner portlon and also a guide-open extends from the bore 26 to theouter end of the dog. A guide-pin 28, having a head 29 at its inner end,is mounted within the dog and ranges partially Within the guide-opening,the heed 29 extending within the bore 26 and normally coinciding withthe slot 25. A com ression-sprmg 30 extends against the head 29, so itsto hold the latter toward the inner end of the dog. A pin 31 is fixedtransversely at the inner end of the dog in line with the diameter,thereof at right angles to the slot 25. When the dogs 15 are in positionWithin the clutch member 9, the actuating-bars 21 extend through theslots of the pin '28 and acts.

ating-bars are shifted, the crooks 24 thereof 25 of the correspondingdogs and between" the pins 31 and heads 29 thereof.

The. actuating-bars 'are attached at their outer ends to a movablesleeve 32, mounted upon the driven member and are adapted to be moved inunity thereby. When the actuact to move the dogs outward in oppositepairs severally by coming into contact with the corresponding heads 29.If, however, the outer endsof the dogs should come into contact with theadjacent ring at points between its notches, they will necessarilybecome detained in outward movement until the ring is moved so that its.diamctri'cal opposite notches register with the corresponding ends ofthe dogs. The crooks 24, however, may be drawn into full engagement with.anyof the pairs of dogs regardless of the particular position of the.notches of the corresponding rings, and if the dogs are detained 'in'out- 4 ward movement by coming into contact with the rings, as abovedescribed, the springs will become compressed because of the action ofthe 'crooks against the heads of the guidepins, and thereafter when thenotches of the corresponding ring register with the adjacent ends of thedogs the latter will be moved 0utward into said notches by the expandinaction of the springs so compressed. All 0' the dogs are normally heldin innermostpo-' sition by the engagement of the correspondingactuating-bar with the pins 31, which are fixed at the inner ends of therespective dog's. Thus it will appearthat the dogs are afforded reliefas occasion requires when bein a'djustedto their outward positions andwill also be positively drawn to and held in their their innermostposition according to the position of the actuating-bars. It will-alsoappear that as the rings are respectivelyen'- gaged by the correspondingpan of do s the clutch member will thereby becoine (riven according tothe motion of the rings thus engaged.

Having described-my invention, what I claim as new,a1id desire to secureby Letters Patent, isi 1. In a clutch, a driving-gearand driven membersuitably mounted with their axial centers in alinement; a clutch memberin fixed connection with the driven member and ranging within thefiange'of the drivinggear; oppositely-ilisposed dogs mounted. in radialposition 111 the clutch member and being adapted to he-shil'ted inwardlyand outwardly, the said driving-gear having notches within its llange'toreceive the outer ends of the dogs; a'guide-pin arranged longitudinallywithin each of said aegis and havimg a head upon its end nearestthc'inner end oi'the dog:

a compression-spring. acting against said head to hold it in normalposition, each (If-t connection with the clutch memberadapted to bemoved outwardly into engagement with; said ring, and having aguideminwith ahead;

a spring in connection with the Hogan duct? ing against the head of ,theguld'e 'p'in; a transversepin at the inner end of thorium}? and anactuating-bar having an outwardlyextending crook, and engaged with saiddog between said head andtransverse pin.

3. In a clutch, a clutch member havinga ring mounted thereon 'inmovable-relation therewith, and having also one or more dogs adapted toengage. the ring,-'.each of. said dogs having a transverse pin at itsinner end;' a guide-pin in movable relation with each of said dogs; acompression-spring in connection'with each of said 'gnidwpinsactingrespectively against the dogs to hold them in outermost position; andone or more actuat ing-bars in connectionwvith thej'corresponding dogsand each having-an outwardly-dis? posed crook adapted to move therespective dogs outward by coming into engagement with the correspondingguide-pins, and inward by engagement with said transverse pins.

4. In a clutch, a clutch member and a driving member, in combinationwith a dog mov-.

ably mounted in the clutchmember and having a'guide-pin movablyconnected therewith, and having also a transverse pin at its inner end;a spring acting between the dog and guide-pin to hold the-former towardits outermost position; and an actuating-bar in 'movahle relation withthe clutch member and extending through the inner portion. of

' the dog between said transverse pin and innor end of the guide-pimthesaid actuatinghar having a curved portion adapted to move said do;outwardly into engagement with the driving-memher bv acting against theend of -the guide-pin, and inwardlybyi engagemeiit with said transversepin.

In testimony whereof in presence ol two witnesses.

, MAUR [CE I. .ROSENTH AL. \Vitnesses:

lino-Mix (l. Invent. W. (l. BifnNs.

I ls

l aflix my signature

